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| author | Fangrui Song <i@maskray.me> | 2021-01-07 14:05:46 -0800 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2021-01-07 14:05:46 -0800 |
| commit | 85f86e8a3cf9e05347691fdde30e9e98a6657d92 (patch) | |
| tree | 7030bae1fcac98290f5b342684642e0655bc18e4 /llvm/lib/Transforms/Utils/BasicBlockUtils.cpp | |
| parent | 63b42a0514567d24df617e4587e80e4564ebf120 (diff) | |
| download | llvm-85f86e8a3cf9e05347691fdde30e9e98a6657d92.zip llvm-85f86e8a3cf9e05347691fdde30e9e98a6657d92.tar.gz llvm-85f86e8a3cf9e05347691fdde30e9e98a6657d92.tar.bz2 | |
[libc++abi] Simplify __gxx_personality_v0
In three cases we call `scan_eh_tab` to parse LSDA:
* `actions & _UA_SEARCH_PHASE`
* `actions & _UA_CLEANUP_PHASE && actions & _UA_HANDLER_FRAME && !native_exception`
* `actions & _UA_CLEANUP_PHASE && !(actions & _UA_HANDLER_FRAME)`
Check
`actions & _UA_CLEANUP_PHASE && actions & _UA_HANDLER_FRAME && native_exception` first,
then we can move three `scan_eh_tab` into one place.
Another simplification is that we can check whether the result of `scan_eh_tab`
is `_UA_CONTINUE_UNWIND` or `_UA_FATAL_PHASE1_ERROR` first. Then many of the
original checks will be dead and can thus be deleted.
Reviewed By: #libc_abi, ldionne
Differential Revision: https://reviews.llvm.org/D93186
Diffstat (limited to 'llvm/lib/Transforms/Utils/BasicBlockUtils.cpp')
0 files changed, 0 insertions, 0 deletions